Move MetricsStateManager into the Metrics component.

chrome/browser/metrics/metrics_log.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/metrics/metrics_log.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 44 matching lines @@
 namespace {
 
 // Returns the date at which the current metrics client ID was created as
 // a string containing seconds since the epoch, or "0" if none was found.
 std::string GetMetricsEnabledDate(PrefService* pref) {
   if (!pref) {
     NOTREACHED();
     return "0";
   }
 
-  return pref->GetString(prefs::kMetricsReportingEnabledTimestamp);
+  return pref->GetString(metrics::prefs::kMetricsReportingEnabledTimestamp);
 }
 
 ProfilerEventProto::TrackedObject::ProcessType AsProtobufProcessType(
     int process_type) {
   switch (process_type) {
     case content::PROCESS_TYPE_BROWSER:
       return ProfilerEventProto::TrackedObject::BROWSER;
     case content::PROCESS_TYPE_RENDERER:
       return ProfilerEventProto::TrackedObject::RENDERER;
     case content::PROCESS_TYPE_PLUGIN:
@@ skipping 349 matching lines @@
     profile = uma_proto()->add_profiler_event();
     profile->set_profile_type(ProfilerEventProto::STARTUP_PROFILE);
     profile->set_time_source(ProfilerEventProto::WALL_CLOCK_TIME);
   } else {
     // For the remaining calls, re-use the existing field.
     profile = uma_proto()->mutable_profiler_event(0);
   }
 
   WriteProfilerData(process_data, process_type, profile);
 }